package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 * @author: jialiangming
 * @date: Created in 2020/5/22 15:52
 * @version: V1.0
 * @copyright: Copyright(c) chinaunicom， All rights reserved.
 */
@Slf4j
/*@ResponseBody
@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")*/

@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {
    /**
     * * 集中能够处理什么异常
     * @return
     * @throws
     */
    @ExceptionHandler(value=MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{},异常类型{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        Map<String,String> errMap =new HashMap<String,String>();
        bindingResult.getFieldErrors().forEach((fieldError)->{
            errMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        return R.error(BizCodeEnum.VAILD_EXCEPTION.getCode(),BizCodeEnum.VAILD_EXCEPTION.getMsg()).put("data",errMap);
    }
    /**
     * 如果前面异常拦截不到，就进入这个总的拦截异常,类似于exception
     * @return
     * @throws
     */
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        log.error("错误：",throwable);
        return R.error(BizCodeEnum.VAILD_EXCEPTION.getCode(),BizCodeEnum.VAILD_EXCEPTION.getMsg());
    }
}
